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What is the difference between Open Cell and Closed Cell Spray foam?

April 26, 2017CELL closed difference foam spray

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What is the difference between Open Cell and Closed Cell Spray foam?

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A. The most important difference is the R-Value per Inch. Each brand of foam can vary but typically Open Cell Foam is R3.6 per inch. Closed Cell Foam(2#) is R6.7 per inch. Closed Cell being a little more expensive.